Visor



FIG. 1 is a perspective view of the visor;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view, the left side being a mirror image thereof; and,

FIG. 4 is a top view thereof.

The long-short-dashed-line showing of environment in the various figures is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a visor, as shown and described. 